/*
 * Tencent is pleased to support the open source community by making BK-CI 蓝鲸持续集成平台 available.
 *
 * Copyright (C) 2020 THL A29 Limited, a Tencent company.  All rights reserved.
 *
 * BK-CI 蓝鲸持续集成平台 is licensed under the MIT license.
 *
 * A copy of the MIT License is included in this file.
 *
 *
 * Terms of the MIT License:
 * ---------------------------------------------------
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package com.tencent.bkrepo.common.storage.util

import org.apache.commons.codec.binary.Hex
import org.apache.commons.codec.digest.DigestUtils
import java.io.File
import java.io.IOException
import java.io.InputStream
import java.security.MessageDigest

@Deprecated("Use ArtifactFile.sha256() or HashAlgorithm's extension function")
object FileDigestUtils {

    @Throws(IOException::class, IllegalArgumentException::class)
    fun fileSha1(inputStreamList: List<InputStream>): String {
        return digest(inputStreamList, DigestUtils.getSha1Digest())
    }

    @Throws(IOException::class, IllegalArgumentException::class)
    fun fileMd5(file: File): String {
        return digest(listOf(file.inputStream()), DigestUtils.getMd5Digest())
    }

    @Throws(IOException::class, IllegalArgumentException::class)
    fun fileMd5(inputStream: InputStream): String {
        return digest(listOf(inputStream), DigestUtils.getMd5Digest())
    }

    @Throws(IOException::class, IllegalArgumentException::class)
    fun fileMd5(inputStreamList: List<InputStream>): String {
        return digest(inputStreamList, DigestUtils.getMd5Digest())
    }

    @Throws(IOException::class, IllegalArgumentException::class)
    fun fileSha256(file: File): String {
        return digest(listOf(file.inputStream()), DigestUtils.getSha256Digest())
    }

    @Throws(IOException::class, IllegalArgumentException::class)
    fun fileSha256(inputStream: InputStream): String {
        return digest(listOf(inputStream), DigestUtils.getSha256Digest())
    }

    @Throws(IOException::class, IllegalArgumentException::class)
    fun fileSha256(inputStreamList: List<InputStream>): String {
        return digest(inputStreamList, DigestUtils.getSha256Digest())
    }

    private fun digest(inputStreamList: List<InputStream>, messageDigest: MessageDigest): String {
        inputStreamList.forEach { it.use { inputStream -> DigestUtils.updateDigest(messageDigest, inputStream) } }
        return Hex.encodeHexString(messageDigest.digest())
    }
}
